The answer is 11, and I am 100% positive it is the correct answer because I used my calculator and double checked.
Complete Question
Yana though of a number she multiplied it by 8 subtracted 4 divided the result by 2, and got 30. What number did Yana think of
Answer:
Step-by-step explanation:
From the question we are told that:
Thought of Number x
Multiplied it by 8
Subtracted 4
Divided the result by 2
Generally the equation for x is mathematically given by
3 feet? maybe. This question was confusing to read.
first subtract the last equation from the first. this gives:-
-x + y = -8 .....................(1)
Then multiply the first equation by 2 and add it to the 2nd equations This gives
9x = 18
so x = 2
and from equation (1) y = -8 + 2 = -6
Substituting for x and y in the second equation
z = (24 -5(2) -12) / 2 = 1
Answer is choice b.